What happened?

Police said that no evidence could be found to verify the story Antoine first gave to them – which was that the pair had gone from a house party to some bars before Gargol left with an unidentified man, while Antoine went to see her uncle.

Once the belt had established Antoine as a suspect, police used Facebook posts to help establish the real movements of the pair.

Police realised that Antoine’s Facebook post on Gargol’s personal page the following morning – “Where are you? Haven’t heard from you. Hope you made it home safe” – was a diversion. She had also asked her uncle to provide a false alibi.

And eventually she confessed to a friend.

Antoine now says the pair were drunk and high on marijuana when they got into a heated argument.

She accepts she is responsible for strangling her best friend – although she says she doesn’t actually remember the events.

Does Antoine show remorse?

Yes, and that’s why the judge agreed to a seven-year sentence when she pleaded guilty to manslaughter (rather than the second-degree murder she was originally charged with).

“I will never forgive myself. Nothing I say or do will ever bring her back. I am very, very sorry… It shouldn’t have ever happened,” she said in a statement through her lawyer.

Her lawyer said her client had suffered years of abuse in the Saskatchewan care system and had gone to police to report abuse by foster parents a month before the killing.